Improvement in railway car-roof



B. P. PIOKETT.

Oar Roof. No. 102,316. Patented April 26,1870.

fitted with,

BENJAMIN F. PIOKETT, OF NASHVILLE, TENNESSEE.

Letters Patent No. 102,316, dated April 26, 1870.

IMPROVEMENT IN RAILWAY CAR-ROOF.

The Schedule referred to in these Letters.Patent and making part of thesame To all whom it may concern Be it known that I, BENJAMIN F. PICKETT,ofN ashville, in the county of Davidson and State of Tennessee, haveinvented a new and useful Improvement in Car- Roofing and I do herebydeclare that the following is a full, clear, and exact description ofthe same, reference being bad to the accompanying drawings making a partof this specification, in which- 1 Figure 2 is a plan view showing aportion of the lath and reflexed edges of the roofing-sheets, a part ofthe fastening-plate, and the inclosing-cap; and

Figure 1 is a transverse vertical section showing. all the parts.

This invention consists in the combination of a lath or strip forming aridge attached lengthwise of and directly to the boards of a car orother roof, with metal sheets spread on the wooden roof, and havingtheir edges next the ridge turned over, a metal plate fastened both tothe ridge and the reflexed edges of the sheets, and a cap placed overthe metal plate and having its edges turned under the refiexed edges ofthe sheets.

In the drawings A is the'wooden car-roof.

B, a wooden ridge on the same. i

O O, the sheets of metal'which cover the roof, the

edges of which, adjacent to the-ridge, are turned-over.- I

D, the fastening-plate, secured firmly at its middle to the ridge B, andriveted at its edges to the reflexed edges of the sheets 0; and

' E, a cap, screwed through the fastening-plate to the ridge, and at itsedges turned under the reflexed edges of the sheets 0. c g

, The plateD fastens tho sheets 0 to the roof in such a manner thattheymay expand orcontract according to the variationsof temperature, and mayyield before the swayingandoscillation of the car.

The cap E preventsjm oisture from working in between the sheets andfastening-plate, and at the same time in no manner restricts theexpansion and con traction of the sheets.

Having thus described my invention,

What I claim as new, and desire to secure by Letters Patent, is-

The combination, with a wooden roofing, of the ridge B, sheets 0,fastening-plate D, and cap E, constructed and arranged in the manner andfor the purpose described.

BENJAMIN F. PIOKETT.

\Vitnesses J. C. WAnns, M. MAHONY.

